ESIE16-03B | Part 3. Repair 3.3. Unit specific repair proceduresPage 84 22/08/16 | Version 1.1SA R32 Sky-Air RZAG-L3.3.2.11. Replacing solenoid valveRemoval1. Switch off the Daikin unit via the user interface.2. Switch off the Daikin unit with the field supplied circuit breaker.3. Remove plate work when required (refer to "Basic removal" on page 67).4. Recover the refrigerant (refer to "Refrigerant repair procedures" on page 61).5. Connect a nitrogen hose to the outdoor suction service port.6. Attach a hose with core-depressor to allow the release of the nitrogen.7. Remove the solenoid valve coil (refer to "Replacing solenoid valve coil" on page 85).8. Connect a nitrogen hose to the outdoor suction service port.9. Attach a hose with core-depressor to allow the release of the nitrogen.10. Cut the 2 solenoid valve pipes (1).11. Remove the solenoid valve (2).12. Supply nitrogen to the piping circuit.13. Using an oxygen acetylene torch, heat the 2 solenoid valve pipes (1).14. When the solder material is liquid, pull the 2 solenoid valve pipes (1).15. Cut the nitrogen supply when the piping has cooled down.Figure 3-20: Removing solenoid valveInstallation1. Wrap a wet rag around the solenoid valve.2. Proceed in reverse order.C AUTIONThe maximum applied Nitrogen pressure must not exceed 0.02 MPa.1. Solenoid valve pipe 2. Solenoid valveWARNINGOverheating the solenoid valve will damage or destroy it.21
